1H and 13C NMR assignments of bipyridine helicate complexes and their precursor ligands were achieved using gradient-based homo- and hetero-correlated 2D experiments. The observed trends in 1H and 13C chemical shift variations [1d(H) and 1d(C)], on passing from the ligands to the complexes, are accounted for on the basis of MO evaluation of atomic charges.
Structural elucidation of bipyridine helicates complexes and their precursors by NMR spectroscopy
FAMULARI, ANTONINO;
2001-01-01
Abstract
1H and 13C NMR assignments of bipyridine helicate complexes and their precursor ligands were achieved using gradient-based homo- and hetero-correlated 2D experiments. The observed trends in 1H and 13C chemical shift variations [1d(H) and 1d(C)], on passing from the ligands to the complexes, are accounted for on the basis of MO evaluation of atomic charges.File in questo prodotto:
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